Tinker in Pubs
Tinker is a ranged intelligence Hero who relies heavily on his assortment of nukes for ganking and pushing. He is able to reset the cooldown on his abilities. Tinker needs to farm his Boots of Travel as soon as possible for his full ganking and pushing potential to be unlocked. If he farms it too late, he will be unable to keep up with the pace of the game. Therefore it is recommended for Tinker to solo mid.
Tinker sould be played mid, because of his good nukes which makes him a very nice ganker. In pubs, you can start with Bottle with no problem, but if you are in a more serious game, give some mantles, tangos and branchs.
At this point, you should focusing on last hitting to get your boots as fast as possible and checking the runes every 2 minutes. If you get a Haste or invi, you can gank a side lane easily at lvl 5. Of course if you feel like you can gank before lvl 5, you can do it.
After getting Bottle and Boots of Speed, it's time for your Travel. Keep farming and ganking to get it. Your early game is over once you get it.
Cool, you got Boots of Travel. At this point, farm the side lanes if it's safe then teleport back to your foutain. Also you can go gank the other lanes. If you can't, spam sets of missiles and back to your foutain. Repeat this as many times as necessary.
Watch for weak or low hp heroes in any lane, then teleport to that lane where you can't be seen, come up from behind trees, and nuke them to death. Buy your Dagger and continue to push the side lanes.
At this point (with dagon 3~5), you can kill almost any hero. The order to gank with Dagon is: TP -> Missile -> Dagger -> Laser -> Dagon -> Rearm -> Missile -> Laser -> Dagon. Continue to push the side lanes with your Dagger and kill low hp heroes.
About lvl 8 Rearm: If you are a good player, you will get BoT on lvl 8.